Safety means for locomotive turn-tables.



PATENTED JAN. 14, 19Q8. Jr W. DE LONG.

2 SHEETS-SHEET 1.

APPLI OATIQN FILED JUNE 14,1907.

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. S AFETY MEANS FOR LOGOMOTIVE TURN TABLES.

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No. 876.698. I PATENTED JAN. 14', 1908.

*J. W. DE LON-G. SAFETY MEANS FOR LOOOMOTIVE TURN TABLES.

APPLICATION FILED JUNE 14.1907.

2 SHEETS-SHEET 2.

avwemfoz 1: NDRRIS PETERS co, WASHINGTON, n. c.

JOHN w. DE LONG, or IRONTON,

OHIO, ASSIGNOR OF ONE-THIRD TO HATTIE KETTERER, OF

RUSSELL, KENTUCKY.

SAFETY MEANS FOR LOCOMOTIVE TURN-TABLES Specification of Letters Patent.

Patented Jan. 14, i908.

Application filed June 14 1907. Serial No. 379.091.

T 0 all whom it may concern:

Be it known that 1, JOHN W. DE Lone, citizen of the United States,residing at Ironton, in the county of Lawrence and State of Ohio, haveinvented certain new and useful Improvements in Safety Means forLocomotive T urn-Tables, of which the following is a specification.

This invention aims to devise a novel means forlimiting the movement ofrolling stock and particularly to prevent a locomotive engine frompassing from the main line or branch into the pit provided with aturntable when the latter is moved so as to throw the rails mountedthereon out of line with the rails of the main track.

For a full description of the invention and the merits thereof and alsoto acquire a knowledge of the details of construction and the means foreffecting the result, reference is to be had to the followingdescription and accompanying drawings.

WVhile the invention maybe adapted to different forms and conditions bychanges in the structure and minor details without departing from thespirit or essential features thereof, still the preferred embodiment isshown in the accompanying drawings, in which:

Figure 1 is a top plan view of a turntable and terminus of a branch ormain railway provided with safety appliances embodying the invention.Fig. 2 is a view similar to Fig. 1 showing the position of the checksupon the rails of the main or branch line when the turntable is moved tothrow the rails carried thereby out of line with the rails of thecooperating track. Fig. 3 is a transverse section on the line 0cm ofFig. 2 looking in the direction of the arrows. Fig. 4 is a centrallongitudinal section on the line -'y of Fig. 1. Fig. 5 is a detailperspective view of a check.

Corresponding and like parts are referred to in the followingdescription and indicated in all the views of the drawings by the samereference characters. I

The turntable 1 may be of the usual construction arranged to operate ina pit 2. A rod or bar 5 mounted to slide in bearings 6 se cured to thecross ties 10 is provided at the end adjacent to the turntable with aroller or wheel 3 mounted upon a pin 4, said rod or bar being normallypressed towards the turntable by means of a spring 9 mounted. thereonand confined between one of the bearings 6 and a cross head 13 securedto said rod. The roller or wheel 3 is adapted to engage with an edge ofthe turntable 1 when the latter is in normal position that is with itsrails in line with the rails of the terminal portion of the trackleading to the turntable. Under normal conditions the spring 9 iscompressed by the action of the turntable upon the rod or bar 5, theroller or wheel 3 relieving friction between the parts 1 and 5.

Chocks 14 are provided for the rails 15 of the track leading to theturntable and are carried by arms or bell cranks 7 which are pivoted attheir elbows to cross ties or other supporting means of the track. Thehorizontal arms of the bell cranks 7 have connection with the cross head13 so as to move therewith and cause the checks 14 to move towards andfrom the rails 15. The horizontal arms of the bell cranks extend beneaththe rails 15 so as to be out of the way and not interfere with traflic.Each check 14 is formed with a cross head 8 which extends along theouter side of the adjacent rail and has adjustable connection with thelongitudinal arm of the supporting bell crank 7 a set screw 11. securingthe chock to its carrying arm in the adjusted position as when theturntable is moved to throw its rails out of line with the rails 15 uponthe rod or bar 5 is released and the spring 9 being relieved ofcompressive force expands and moves the rod or bar 5 forward or towardsthe turntable and operates the bell cranks to throw the checks 14 overthe rails 15 so as to arrest forward movement of a locomotive or otherrolling stock when approaching the turntable. When the rails of theturntable aline with the rails 15 the rod or bar 5 is moved outward oraway from the turntable thereby compressing the spring 9 and operatingthe bell cranks 7 to throw the checks 14 outward so as to offer anunobstructed passage to the locomotive or car advancing to the turntableto be reversed or switched as the case may be. The inner sides of thecross heads 8 of the ehocks are shaped to conform to the outline of thesides of the rails 15 so as to fit the same closely and form a brace tosustain the shock incident to rolling stock striking the checks 14.

The invention may be adapted to turntables of any nature whetherdesigned either for reversing an engine or car or for switching the sameto a branch line or siding. The safety appliances are automatic inaction being actuated by the turntable the arts being so arranged thatwhen the turntab e is moved from a normal position the chocks are thrownover the rails to obstruct and arrest the advance of a locomotive engineand when the turntable is in normal position the chocks are thrown outof the way to permit a locomotive engine to pass without entrance uponthe turntable. The device is exceedingly simple and effective andreliable since it does not depend for its operation upon any care orattention upon the part of an operator, its action being whollyautomatic and governed by the position of the turntable.

Having thus described the invention, what is claimed as new is:

1. In combination with a turntable, and a track terminal cooperatingtherewith, chocks for the rails of the track terminal, movable supportsfor said chocks, and a spring actuated rod or bar connected with saidmovable supports and adapted when held under restraint by the turntableunder normal conditions to throw the chocks clear of the said tracks,and when released from the restraining influence of said turntable tothrow the chocks in position upon the said rails to arrest the movementof rolling stock towards the turntable.

2. In combination with a turntable and a cooperating track terminal,pivoted supports of bell crank form, chocks carried by one arm of saidpivoted supports, and a spring actuated rod or bar having connectionwith the other arm of said pivoted. supports and adapted to throw thechocks clear of the rails of the track terminal when the turntable is innormal and to throw said chocks across the path of said rails when theturntable is moved from the given position.

3. In combination of a railway track, 0 positely disposed pivoted bellcranks, choc s supported by the longitudinal arms of said bell cranks, aspring actuated rod or bar arranged medially between said rails, a crosshead applied to said rod or bar, and means connecting the ends of thecross head with the horizontal arms of the aforesaid bell cranks.

4. In combination with a turntable, a track terminal, a spring actuatedrod or bar arranged medially between the rails of the track terminal andadapted to be engaged by the turntable and subject its actuated springto tension under normal conditions, oppositely disposed bell crankshaving their horizontal arms connected with a spring actuated rod orbar, and chocks supported by the longitudinal arms of said bell cranksand held clear of the rails of the track terminal when the rails of theturntable aline with the rails of the track terminal, and said chocksbeing thrown across the path of the aforesaid track terminal rails whenthe turntable is moved from a normal position.

In testimony whereof I affix my signature in presence of two witnesses.

JOHN W. DE LONG.

